Hancock County, IL

291 public highway bridges

Hancock County Bridge Snapshot

Hancock County, Illinois contains 291 public highway bridges in the FHWA National Bridge Inventory. Roughly 41.2% are rated “Good,” 37.8% “Fair,” 20.3% “Poor,” and 20.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

291

Total Bridges

41.2%

Good

20.3%

Poor

20.3%

Structurally Deficient

Condition Distribution

Good

41.2% (120)

Fair

37.8% (110)

Poor

20.3% (59)

SD

20.3% (59)

All Bridges (291)

Sort:

TR 396

Over: ROCK CREEK

1.5 NE FOUNTAINGREEN, Hancock, IL

Built 1982 Load: 32.4 t ADT: 50

TR 302

Over: CEDAR CREEK

2.5 MI SW FOUNTAINGR, Hancock, IL

Built 1979 Load: 32.4 t ADT: 50

TR 221

Over: E FK OF LAMOINE R.

4.5MI N OF ST. MARY, Hancock, IL

Built 1981 Load: 32.4 t ADT: 50

TR 227

Over: LITTLE CREEK

1.25 NE MIDDLE CREEK, Hancock, IL

Built 1987 Load: 32.4 t ADT: 100

TR 295

Over: BRONSON CREEK

2.5 NE DENVER, Hancock, IL

Built 1987 Load: 32.4 t ADT: 50

TR 240

Over: BRONSON CREEK

3.5 NE DENVER, Hancock, IL

Built 1981 Load: 32.4 t ADT: 50

TR 266

Over: SPRING CREEK

0.9 MI S OF DISCO, Hancock, IL

Built 1980 Load: 32.4 t ADT: 100

TR 344

Over: LA HARPE CREEK

2.0 MI S LA HARPE, Hancock, IL

Built 1994 Load: 32.4 t ADT: 75

TR 400

Over: S BRHN OF CROOKED CR

2.0 MI E LAHARPE, Hancock, IL

Built 1983 Load: 32.4 t ADT: 50

TR 58

Over: RAILROAD CREEK

2.0 SE HAMILTON, Hancock, IL

Built 1983 Load: 32.4 t ADT: 150

TR 3A

Over: SYCAMORE CREEK

.4 MI N OF NAUVOO, Hancock, IL

Built 1986 Load: 32.4 t ADT: 450

TR 200A

Over: SHORT CREEK

2MI S BURNSIDE, Hancock, IL

Built 1993 Load: 32.4 t ADT: 50

TR 91

Over: WILDCAT CREEK

1.7 W LACROSSE, Hancock, IL

Built 1982 Load: 32.4 t ADT: 125

TR 214

Over: SHORT CREEK

3.0 SE BURNSIDE, Hancock, IL

Built 1981 Load: 32.4 t ADT: 150

TR 225

Over: WEST FORK BEAR CR

.1 MI SE ELVASTON, Hancock, IL

Built 1981 Load: 32.4 t ADT: 100

TR 154

Over: ROCK CREEK

.5 MI. N OF FERRIS, Hancock, IL

Built 1982 Load: 32.4 t ADT: 100

TR 379

Over: THE BLUFF CANAL

5.5 S WARSAW, Hancock, IL

Built 1986 Load: 32.4 t ADT: 125

TR 104

Over: TRIB OF PANTHER CR

3.0 W STILLWELL, Hancock, IL

Built 1979 Load: 32.4 t ADT: 50

TR 339

Over: BEAR CREEK

3.0 NW WEST POINT, Hancock, IL

Built 1983 Load: 32.4 t ADT: 50

FAS 430

Over: LITTLE CREEK

1MI S OF MIDDLECREEK, Hancock, IL

Built 1992 Load: 32.4 t ADT: 25

TR 334

Over: PANTHER CREEK

2.0 SW ST MARY, Hancock, IL

Built 1983 Load: 32.4 t ADT: 25

TR 133

Over: N FK OF LARRY'S CR

5.5 SW NAUVOO, Hancock, IL

Built 1984 Load: 32.4 t ADT: 75

1ST STREET

Over: CREEK

DALLAS CITY, Hancock, IL

Built 1993 Load: 32.4 t ADT: 200

IL 96

Over: TYSON CREEK

1.7M S IL 9, NIOTA, Hancock, IL

Built 1977 Load: 33.0 t ADT: 1,700

TR 258

Over: FLOUR CREEK

1.5 MI SE BOWEN, Hancock, IL

Built 1976 Load: 33.0 t ADT: 125

US 136

Over: MISS R/1ST/KEOKUK JCT RR

HAMILTN,IL-KEOKUK,IA, Hancock, IL

Built 1985 Load: 33.4 t ADT: 10,500

TR 166

Over: GROVE CREEK

1.5 NE ADRIAN, Hancock, IL

Built 1961 Load: 33.7 t ADT: 50

TR 84

Over: S FK OF LARRY'S CR

5.0 W FERRIS, Hancock, IL

Built 1962 Load: 33.7 t ADT: 175

IL 96

Over: WAGGONER CREEK

4.2M N US136,HAMILTN, Hancock, IL

Built 1981 Load: 34.0 t ADT: 1,100

WARSAW (IL 96) SPU

Over: CEDAR GLEN CREEK

.8M W IL96/E WARSAW, Hancock, IL

Built 1930 Load: 34.3 t ADT: 1,150

IL 96

Over: DRAINAGE DITCH

5.8M S NAUVOO CENTER, Hancock, IL

Built 1936 Load: 34.7 t ADT: 1,050

TR 438

Over: MUD CREEK

3.5 S WEST POINT, Hancock, IL

Built 1936 Load: 35.0 t ADT: 50

IL 61

Over: FLOUR CREEK

2.8M E IL 94, BOWEN, Hancock, IL

Built 1927 Load: 35.6 t ADT: 1,250

IL 9/94

Over: LAMOINE RIVER

5.2M E IL 94 S, Hancock, IL

Built 1984 Load: 35.6 t ADT: 1,050

CO HWY 24

Over: S BRH OF LARRY'S CR

6.5 W FERRIS, Hancock, IL

Built 2005 Load: 35.6 t ADT: 850

TR 3

Over: BRANCH OF TYSON CR.

0.9 MI SW OF NIOTA, Hancock, IL

Built 1963 Load: 35.6 t ADT: 225

IL 96

Over: GRAY BAY

2.5M N US136,HAMILTN, Hancock, IL

Built 1981 Load: 36.0 t ADT: 1,100

TR 356

Over: LITTLE LINDA CREEK

2.8 M N OF ST MARY, Hancock, IL

Built 1978 Load: 36.0 t ADT: 100

TR 180

Over: GROVE CREEK

3.4 NW BURNSIDE, Hancock, IL

Built 1979 Load: 36.0 t ADT: 50

TR 99

Over: LITTLE CREEK

3.5 MI S LAHARPE, Hancock, IL

Built 1979 Load: 36.6 t ADT: 50

TR 301

Over: TRIB LITTLE BEAR CR

3 MI SE WARSAW, Hancock, IL

Built 1963 Load: 37.6 t ADT: 50

IL 96

Over: LARRY CREEK

5.3M N US136,HAMILTN, Hancock, IL

Built 1936 Load: 38.2 t ADT: 1,050

IL 96

Over: CHANEY CREEK

.5M N US136,HAMILTON, Hancock, IL

Built 1935 Load: 39.5 t ADT: 1,650

IL 61

Over: FLOUR CREEK

3.6M N IL101-AUGUSTA, Hancock, IL

Built 2001 Load: 39.5 t ADT: 1,100

TR 73

Over: LA HARPE CREEK

2.5 SE LAHARPE, Hancock, IL

Built 1978 Load: 39.5 t ADT: 75

TR 52

Over: ROBINSON CREEK

2.0 MI E NAUVOO, Hancock, IL

Built 1984 Load: 39.9 t ADT: 50

IL 94

Over: LONG CREEK

1.1M N US136,CARTHAG, Hancock, IL

Built 1932 Load: 40.2 t ADT: 3,750

FAS 422

Over: CHANEY CREEK

2.0 MI NE HAMILTON, Hancock, IL

Built 1986 Load: 41.1 t ADT: 850

US 136

Over: DRAINAGE DITCH

1.7M W IL 61, Hancock, IL

Built 1991 Load: 42.1 t ADT: 3,400

TR 163

Over: SHORT CREEK

3.5 MI NE CARTHAGE, Hancock, IL

Built 1985 Load: 43.1 t ADT: 250

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026